I wonder if there is a way to clear the "local console" pane in ZeroBrane. Sometimes it gets "clogged" with no way to clean it - for example checking _G produces massive amount of text and everything slows to halt afterwards.
I am using v0.50 that came bundled with Marmalade, if that matters. I tried local menu (right-click) but there is nothing.
You can use clear command (simply type clear and Enter), which will clear the console content (it's described in the introductory text at the top of the console window).
I suggest you upgrade to a newer version as 0.50 is quite old.